Simultaneous elections for Lok Sabha and Karnataka Assembly are fought keenly between Congress and Bharatiya Janata Party (BJP), while Janata Dal (Secular) (JDS) can play a vital role in providing required majority to form the government.

Results of the Loksabha elections held in Karnataka in 2004. Simultaneous elections for Lok Sabha and Karnataka Assembly are fought keenly between Congress and Bharatiya Janata Party (BJP), while Janata Dal (Secular) (JDS) can play a vital role in providing required majority to form the government.